.main-aside {
    position: relative;
    .about {
        display: none;
        position: relative;
        overflow: hidden;
        padding: 15px;
        h4 {
            margin: 0;
            span {
                font-family: 'Open Sans', sans-serif;
                font-weight: 400;
                font-size: 16px;
                vertical-align: middle;
            }
            .fa {
                margin-right: 10px;
                font-size: 21px;
                color: #DBA400;
                vertical-align: middle;
            }
        }
        img {
            height: 120px;
            width: 120px;
            display: block;
            margin: 15px auto;
            @include borderRadius(50%);
        }
        p {
            font-size: 14px;
            padding: 15px 0;
        }
        a {
            font-size: 14px;
            text-decoration: underline;
            &:hover, &:focus {
                color: $main-color;
            }
        }
        &:before {
            content: '';
            display: block;
            position: absolute;
            margin: -20px;
            top: 0;
            right: 0;
            bottom: 0;
            left: 0;
            background-image: url('../img/about-bg.jpg'); 
            background-position: 50% 50%;
            background-size: cover;
            opacity : 0.2;
            z-index: -1;
        }
    }
    
    .last-tweet {
        padding: 10px 15px;
        border-bottom: 1px solid $bd-color;
        overflow: hidden;
        h4 {
            float: left;
            height: 100%;
            margin: 0;
            vertical-align: middle;
            span {
                display: none;
                font-family: 'Open Sans', sans-serif;
                font-weight: 400;
                font-size: 16px;
                vertical-align: middle;
            }
            .fa {
                margin-right: 15px;
                font-size: 21px;
                color: $tw-color;
                vertical-align: middle;
            }
        }
        p {
            display: block;
            vertical-align: middle;
            a {
                color: $tw-color;
            }
        }
    }
    
    .recent-posts {
        display: none;
        padding: 15px;
        h4 {
            margin: 0;
            font-weight: 400;
            font-family: 'Open Sans', sans-serif;
        }
        .thumbs-grid {
            margin: -1.545%;
            margin-top: 10px;
        }
        a {
            display: inline-block;
            position: relative;
            vertical-align: top;
            margin: 1.5%;
            width: 30.33333%;
            padding-top: 30.33333%;
            background-size: cover;
            background-position: 50% 50%;
            -webkit-filter: grayscale(100%);
            -moz-filter: grayscale(100%);
            -ms-filter: grayscale(100%); 
            -o-filter: grayscale(100%);
            filter: url(filters.svg#grayscale); /* Firefox 3.5+ */
            filter: gray;

            @include transition(0.2s);
            &:focus, &:hover {
                @include boxShadow(0px 0px 40px 15px rgba(0,0,0,0.4) inset);
            }
        }
    }

    .instagram-feed {
        display: none;
        padding: 15px;
        h4 {
            margin: 0;
            span {
                font-family: 'Open Sans', sans-serif;
                font-weight: 400;
                font-size: 16px;
                vertical-align: middle;
            }
            .fa {
                margin-right: 10px;
                font-size: 21px;
                color: $ins-color;
                vertical-align: middle;
            }
        }
        
        .thumbs-grid {
            margin: -1.545%;
            margin-top: 10px;
        }
        .thumb {
            display: inline-block;
            vertical-align: top;
            margin: 1.5%;
            width: 30.33333%;
            padding-top: 30.33333%;
            background-size: cover;
            background-position: 50% 50%;
        }
    }
}

@media screen and (min-width: 840px){
    .main-aside {
        float: right;
        border-left: 1px solid $bd-color;
        width: 240px;
        padding-bottom: 5000px;
        margin-bottom: -5000px;
        @include boxSizing(border-box);
        
        .about {
            display: block;
        }
        
        .last-tweet {
            padding: 15px;
            border-top: 2px solid $main-color;
            border-bottom: 2px solid $main-color;
            h4 {
                float: none;
                span {
                    display: inline;
                }
            }
            p {
                text-align: center;
                padding: 15px;
            }
        }

        .recent-posts {
            display: block;
        }

        .instagram-feed {
            display: block;
        }
    }
}

@media screen and (min-width: 1000px){
    .main-aside {
        width: 340px;
    }
}